baber/WOPTO huggingface dataset:
Patent GB-1510944-A (GB)
Title: Method for fabricating semiconductor device and etchant for polymer resin
IPC: C08J7/12
Filed: 1976-04-30
Abstract: 1510944 Etching HITACHI Ltd 30 April 1976 [13 Aug 1975] 17720/76 Heading B6J [Also in Division H1] A semi-cured resin containing amido and/or imido linkages is etched with a composition comprising hydrazine and at least one polyamine of the formula wherein R is selected from divalent radicals having 2-6 carbon atoms. Examples of suitable resins and amines are given.
Patent GB-874140-A (GB)
Title: Improvements in or relating to column for gas-liquid contacting
IPC: B01D3/20
Filed: 1959-05-25
Abstract: 874,140. Gas-liquid contact apparatus. STAGE, H. May 25, 1959 [July 28, 1958], No. 17781/59. Class 55 (2). A gas-liquid contact apparatus comprises an exchange chamber formed of a disc-shaped base column plate 1 and boundary walls 2 provided with a partition wall 3 dividing the chamber into a first compartment 4 and a second compartment 5, the first compartment being in communication with the second compartment through one or more apertures 10 between the partition wall and the boundary wall, a pipe inlet 6 located in the first compartment and a pipe outlet 11 in the second compartment, there being also provided a dipping jacket 7 of cylindrical form of substantially the same diameter as that of the base plate placed on the base plate in a coaxial manner and having a lower serrated edge. Preferably the boundary wall is substantially perpendicular to the base plate and the partition wall is substantially perpendicular to the base plate. The partition wall may be disposed along a diameter of the base plate with openings at one or both ends (see Figs. 4 and 2). Outlet pipe 11 may pass through the base plate of the second compartment and may be contained within dipping jacket 7. In a modification (not shown) the upper edges of the outlet pipe are splayed out. Partition wall 3 may be provided with a hollow portion which serves as a weir over which liquid flows into the outlet.
Patent GB-212814-A (GB)
Title: Improvements relating to reciprocating saw frames
IPC: B27B3/32
Filed: 1923-07-10
Abstract: 212,814. Trigg, W. J. July 10, 1923. Saws.-Two reciprocating saw-blades are held by inserting their ends in slots in a pair of flaps 3 hinged to a link 2 which is attached to the saw frame by a bolt 8. Distance pieces 12 may be used between the saws.
Patent GB-1581820-A (GB)
Title: Signal recognition apparatus
IPC: G10L15/10
Filed: 1978-05-04
Abstract: An apparatus and method wherein speech or other signals are sampled during a time slice of approximately 1/30 second and spectrum analysis is performed on the samples, producing measures of amplitude in several frequency bands with each frequency band being characterized by a binary digit indicating the presence or absence of significant amplitude. The binary digits are collectively referred to as a sonogram. Sonograms for several time slices are then concatenated, randomized and decoded using an n-tuple technique to produce a pattern corresponding to the current speech signal. This pattern is learned by superimposing it on an existing vocabulary entry and is subsequently recognized if it is sufficiently similar to one vocabulary entry and different from all others.
Patent GB-1092196-A (GB)
Title: Band pass filter with several tuned circuits connected in chain
Inventor: KOLLMANN MILAN
IPC: H03H7/01
Filed: 1965-04-28
Abstract: 1,092,196. Filters. TESLA, NARODNI PODNIK. April 28, 1965, No. 17871/65. Heading H3U. A bandpass filter comprises more than four (shown as five in Fig. 1) L/C circuits tuned to the same frequency, the coils 31 . . . 35 being wound on a common core 1. Adjacent coils are oppositely wound to remove the need for shielding therebetween, the entire filter being enclosed in a shield 6. Each tuned circuit comprises an inductance, e.g. coil 31, shunted by a capacitor, e.g. 51, and is connected at one end to a common ground wire 4 and at the other end to a terminal 21. Tuning is performed by adjusting ferromagnetic slugs within the core 1. All the tuned circuits have the same quality factor and the same coupling coefficient but the two end circuits have double the impedance of the intermediate circuits.
Patent GB-204751-A (GB)
Title: Improvements in or relating to dies for making or sharpening rock and coal cutting tools
IPC: B21K11/00
Filed: 1922-06-29
Abstract: 204,751. Heginbotham, R. June 29, 1922. Percussive drills for coal and rock have a lug w at their rear end and may have a convex face r, Fig. 6, at the cutting end.
Patent GB-167660-A (GB)
Title: Improvements in absorption refrigerating apparatus
IPC: F25B17/04
Filed: 1920-06-30
Abstract: 167,660. Gibbs, A. L. June 30, 1920. Refrigerating, absorption machines for, of the kind comprising a pair of vessels 10, 11 each acting alternately as generator and absorber and connected to a common coil 13 heated by a. furnace are provided with connecting-pipes 20, 24 between the two vessels, water-jacketed pipes 30, 31 through which the vapour passes to a rectified 37, a separator 39 between the rectifier and the condenser 41, and a pipe 50 leading the vapour returning from the evaporator 47 to the connecting-pipe 20 at the bottom of the two vessels. During the generating period of one vessel, the liquor circulates through the heating- coil 13, and the vapour generated passes through the corresponding pipe 30 or 31 to receive preliminary cooling before reaching the rectifier. The separator 39 is connected to the return pipe 50 by a valved pipe 52. Cooling-water circulates successively from a pipe 55 around a coil in a receiver 44, around the condenser coil, through the rectifier and the jackets of the pipes 30, 31, and through a cooling coil 68 in the vessel acting as absorber. A gauge 26 is fitted between the vessels.
Patent GB-1284796-A (GB)
Title: Finned energy absorber
IPC: F16F11/00
Filed: 1970-04-15
Abstract: 1284796 Deformable energy-absorbing devices FORD MOTOR CO Ltd 15 April 1970 [9 May 1969] 17925/70 Heading F2E An energy-absorbing device comprises an elongate member 12, Fig. 1, symmetrical about its longitudinal axis, radial fins 14, 16 extending radially from member 12 and parallel to, and symmetrical about, its axis, and deforming units 22, 24, each spaced for engagement and deformation by one fin upon longitudinal movement of the member 12. As shown, member 12 is a circular tube having secured to it, e.g. by welding, two L-section fins, Fig. 1, or three such fins, Fig. 3 (underneath view). Energy of downward movement of tube 12, Fig. 1, is absorbed by deformation of the fins as shown in Fig. 1 by engagement of the fins with circular-section posts 22, 24, each post being perpendicular to the outwardly-extending direction of its respective fin. Preferably, the fins are equidistantly spaced about the periphery of the elongate member.
Patent GB-1160059-A (GB)
Title: Building Drum
IPC: B29D30/24
Filed: 1968-04-16
Abstract: 1,160,059. Building drum. UNIROYAL ENGLEBERT FRANCE. 16 April, 1968 [26 April, 1967], No. 17929/68. Heading B7C. A tyre-building and shaping drum comprises a radially collapsible, cylindrical middle section I and coaxial, cylindrical end sections II, III at each end thereof, and mechanisms for radially collapsing the middle section and for moving the end sections relatively towards each other telescopically with respect to the collapsed middle section. Preferably, each of the end sections is radially collapsible when in their retracted position partly surrounding the collapsed middle section. In a typical embodiment, each section consists of small and large arcuate segments arranged alternately about its circumference, and is supported upon and rotates with a shaft S provided with sleeves 1, 2 axially movable therealong. The small and large segments 26, 25 of middle section I are connected to sleeves 1, 2 by links 11-16 so arranged that relative axial movement of the sleeves causes the small segments 26 to move radially inwardly at a greater speed and to a greater extent than the large segments 25. The small and large segments 23, 23a, 24, 24a of the end sections II, III are connected to sleeves 3, 3a by linkage which ensure radial movement of the segments relative to the sleeves and which on relative axially outward movement of the sleeves causes the small segments 23, 23a to move radially inwardly at a greater speed and to a greater extent than the large segments 24, 24a. Links 17, 17a are provided to axially retract the end sections while the middle section is collapsing, and additional sleeves 4, 4a, 5, 5a, 6, 6a are provided and arranged so as to provide air chambers C, Ca, D, Da used for the radial extension and retraction of segments 23, 23a, 24, 24a. In operation, a cylindrical carcass of a radial ply tyre may be built on the drum with all its sections forming a rigid, continuous, cylindrical surface. To shape the carcass into toroidal form prior to the application thereto of breaker and tread, the middle section is collapsed and the end sections are axially retracted whilst inflating the carcass with compressed air, which may be supplied via shaft S to the interior of the building drum. After the tread has been applied, the inflation pressure is released and the end sections are radially collapsed to assist removal of the shaped tyre from the drum.
Patent GB-482855-A (GB)
Title: Improvements in and relating to synchronous-motor electric clocks
IPC: G04C15/00
Filed: 1937-06-28
Abstract: 482,855. Electric clocks. NATIONAL CLOCK MANUFACTURING CO., Ltd., and GOLD, S. June 28, 1937, No. 17980. [Class 139] [Also in Group XXXV] In a synchronous-motor clock the hour and minute hand spindles 27, 28 are both hollow, and extending concentrically within them is a spindle 18 which is not driven by the clockwork but affords an operative connection between the front of the clock and manual means for starting the rotor. Preferably, the spindle 18 is hollow, being mounted on a fixed spindle 17. Fixed to the rear end of spindle 18 is a starting member 19 which coacts with a rubber sleeve on the rotor spindle of the motor 12. By means of a small knob 30 on spindle 18, the member 19 is rocked against spring and weight pressure to coact with the rubber sleeve so that on release of knob 30 the spring and weight rotate the parts to start the motor.
Patent GB-928282-A (GB)
Title: A lifting grab of the kind for lifting single articles
Inventor: HUTCHINSON AMBROSE
IPC: B66C1/42
Filed: 1959-05-27
Abstract: 928,282. Lifting dogs. LIFTING GEAR PRODUCTS (ENGINEERING) Ltd. May 24, 1960 [May 27, 1959], No. 18107/59. Class 78 (4). The arms 4, 2 on a lifting dog are suspended by chains, one of which terminates in a ring 20 which slides on the other. This is said to permit the dog to grip small loads more securely. An enlarged link 22 in the chain 12 limits the movement of the ring 20. A stop 24 limits the extent of closing of the jaws.
Patent GB-126330-A (GB)
Title: Improvements relating to Cylinder Construction for Internal Combustion Engines.
Inventor: ORVILLE THEODORE LIVINUS REEPM
IPC: F02F1/16
Filed: 1916-12-19
Abstract: 126,330. Orville, T. L. R. d'. Dec. 19, 1916. Cylinders, construction of and cooling.-The castiron or steel cylinder barrel h screws into an aluminium jacket a at its base and fits tightly at its upper end x. The upper joint is kept tight by squeezing metallic packing n between the surfaces m, i, and the screwed joint by soldering with tin or zinc. The barrel may have an integral head, or the clearance space may be of such a diameter that the valves are arrested by the end of the barrel if their spindles break.
Patent GB-347529-A (GB)
Title: Improvements in housings or cases and covers for electric switches
IPC: H01H13/04
Filed: 1930-06-14
Abstract: 347,529. Junction boxes. BOSCH AKT.-GES., R., 4, Militõrstrasse, Stuttgart, Germany. June 14, 1930, No. 18261. Convention date, June 17, 1929. [Class 38 (i).j The casing 1 of a junction box has two diametrically opposite slots through which protrude two prominences 3 of a spring. The cover 5 has two corresponding slots 8, the edges of which are bevelled outwards as shown in Fig. 3. When the cover is forced on, the bevelled edges of the slots force the spring parts 3 inwards until they engage in the upper part of the slots. The cover is removed by rotating it thus depressing the prominences 3 beneath the unslotted part of the cover. In a modification, the cover is provided with two recesses extending to the edge and two closed slots. In attaching the cover the prominences enter the open recesses and rotation of the cover then brings the springs into engagement with the closed slots.
Patent GB-274115-A (GB)
Title: Device for filling magazines of self-loading weapons
IPC: F41A9/83
Filed: 1927-07-09
Abstract: 274,115. Ceskoslovenskß Zbrojovka Akciovß Spolecnost v. Brne. July 9, 1926, [Convention date]. Magazines. - A device for stripping service cartridge clips to charge the magazines of automatic guns comprises a container 1 for the filled clips 3 adapted to be coupled to the magazine, and a reciprocating device 15 for pushing the cartridges 2 from the clips through an aperture 9 into the magazine not shown). The pusher device 15 forms part of a hand-lever 17 pivoted at 18 to the container and engages the cartridges in the lowermost clip. When the clip is stripped, it falls through an aperture 22 and is replaced by the filled clip next above. The handle 28 of the lever 17 can be folded into the container when not in use.
Patent GB-613324-A (GB)
Title: Improvements connected with step ladders
IPC: E06C1/22
Filed: 1946-01-19
Abstract: 613,324. Step ladders. NOEL, H. June 19, 1946, No. 18344. [Class 20(ii)] Relates to folding step ladders of the type wherein a pivoted strut member is variable in length to compensate for differences in floor level, and is characterized by the pivoted strut member being connected to a member, e.g. a swivel plate 10, pivoted to an upper tread or the platform 3 about an axis substantially at right angles to the tread or platform, and means for limiting the rotary movement of the pivoted member, e.g. arcuate slots 11 therein engaging pins 12 on the platform 3. The alteration in length of the pivoted strut member may be achieved by forming it from tubes 6, 5, 4 respectively telescoping into one another and held by clamping screws 7, the tubes being suitably braced together, or by pivoting the ends of the tubes 4 through links 17 to lower tubes 16 which may be folded back and held by clips 18, and which may be held in the extended position by e.g. sliding sleeves 19. The outward movement of the strut member may be limited by stops on the plate 10, and its position may be located by spring-loaded plungers engaging detents in lugs formed on the strut members. The Provisional Specification mentions that the pivoted strut members may comprise relatively sliding frames.
Patent GB-907913-A (GB)
Title: Improvements in or relating to tube panels
IPC: B23K9/00
Filed: 1959-05-29
Abstract: 907,913. Welding by fusion. BABCOCK & WILCOX CO. May 29, 1959 [June 2, 1958], No. 18346/59. Class 83 (4). In forming a tube panel a web is welded to two spaced parallel tubes by fusion welds formed simultaneously by two consumable electrodes supplied with direct current. This process is repeated alternately on each side to build up the panel. The welding is performed by the machine described in Specification 907,911 in which two consumable electrodes 20, 20A are connected to the negative and positive terminals respectively of two separate constant potential direct-current sources 10, 10A the opposite terminals of which are connected to the support 13 on which the tubes 15 and web 16 are mounted. The electrodes are fed by rolls 25, 25A on a driven shaft 22 at different speeds so that the welding currents are the same. Submerged arc welding is used and the reverse polarity electrode 20A leads to provide some preheating for the straight polarity electrode 20. The support consists of transverse members 152, 153 shaped to locate the tubes 15 and webs 16 and mounted on girders 151. The members 152, 153 are adjusted vertically by means of wedges or bolts 157. Pivoted clamping bars 165 carrying counterweights 163 are secured by pivoted loops 164 in position to hold the work. When all the welds on one side have been completed, the panel is turned over and the other sides of the joints are welded.
Patent GB-516236-A (GB)
Title: Improvement in electric measuring systems
IPC: G01N9/32
Filed: 1938-06-22
Abstract: 516.236. Electric signalling systems. BAILEY METERS & CONTROLS, Ltd. June 22, 1938, No. 18515. Convention date, July 9, 1937. [Class 40 (i)] In an apparatus for use in connection with a plant for heat or other treatment of a flowing material, e.g., for cracking hydrocarbon oils, means for comparing the densities at two points along the path of the flow are provided comprising two resistances varied in accordance with the density and arranged in a Wheatstone bridge. The invention is described as applied to a system wherein the density is determined at three points A, B. C a Venturi tube being arranged at each point to displace a liquid in a U-tube, a float in one branch operating 'pointers 8, 10 and 17, indicating the differential pressure. The density being known at the first point A it is shown that the density at the other points may be determined by multiplying by a factor, the differential height at the first point divided by the differential lead at'the second. This calculation is performed by the automatically balanced Wheatstone bridges shown in Fig. 4, the pointers 8. 10 varying resistances RC, RI, the galvanometer relay 32 causing motor-31 to rotate pointer 30 to indicate the density at point B, the pointer varying the 'resistance B1. In a similar manner the density at point C is determined, and indicated by pointer 70, resistances F, F1, being of equal value. These pointers also vary resistances B11, -B21 respectively connected in a bridge circuit, Fig. 5, where' resistance A is twice B and B3 is the balancing resistance varied by motor 40 moving the pointer 39 over a scale which indicates the mean density of the fluid between the points B, C since B11 and B21 are representative of the density at these points. It is shown that the time of detention of the fluid between points B, C may be determined by arranging a bridge comprising the resistances RC1, T, B4, B3, and B where RC1 is proportional to the square root of the differential height at point A, T is the balancing resistance varied by motor 52 driving pointer 51 which indicates the time of detention and B4 is equal to B. A further bridge, Fig. 6, comprises resistances T1, TE, C and TT, T1 being representative of the time of detention. TE being varied by a gas thermometer fitted with a Bourdon' gauge moving a pointer to indicate directly the temperature, C a final resistance and TT is the balancing resistance, a pointer 59 driven by motor 60 indicating the time-temperature ratio, recorded on disc 62.
Patent GB-1163570-A (GB)
Title: Machine for milling bread and the like into crumb form
Inventor: MCLOUGHLIN THOMAS JOSEPH
IPC: A47J43/25
Filed: 1968-04-19
Abstract: 1,163,570. Crumbing bread &c. T. J. MCLOUGHLIN and O. HORAN. 19 April, 1968 [21 April, 1967], No. 18568/68. Heading A4C. [Also in Division B2] A machine for crumbling bread and other foodstuffs cnmprises a rotable drum 6 carrying projections 7 which cooperate with shear blade 42 to crumb the bread 55 which is pressed against the drum by plate 26 operated by handle 23. The projections 7 are formed on sheet metal V-shaped plates fastened on the drum 6 with the apex pointing in the direction of rotation.
Patent GB-925807-A (GB)
Title: Process for the manufacture of phosphorus-containing polyester resins
IPC: C08G63/692
Filed: 1959-06-01
Abstract: Phosphorus-containing polyesters are prepared by reacting a phosphoric or phosphorous acid monoester dihalide with a carboxylic acid polyester containing free hydroxyl groups, or with the ingredients thereof, or first with an excess of polyhydric alcohol, with or without a monohydric alcohol followed by esterification with the polycarboxylic acid with or without a monobasic carboxylic acid. Where suitable the carboxylic acids may be replaced by their anhydrides or other ester-forming derivatives.  The phosphorus compounds may be prepared from phosphorus trichloride or phosphorus oxychloride and an aliphatic alcohol having 1-18 carbon atoms, a cycloaliphatic alcohol or a phenol.  The polycarboxylic acid of the polyester must contain at least one carbon atom between the carboxyl groups.  Many suitable ones are mentioned.  Lists are also given of suitable mono- and poly-hydric alcohols suitable as ingredients for the polyester.  When unsaturated polycarboxylic acids are used for the polyesters, the hydrogen halide set free in the reaction with the phosphorus compound adds across some of the double bonds to yield a halogen-containing product.  Wholly linear products may be obtained by keeping the reaction conditions such that only the halogen atom and not the ester group of the phosphorus compound take part in the reaction.  When the phosphorus-containing products contain at least 5 mol. per cent of a -b -unsaturated carboxylic acid or allyl type alcohol residues, the products may be polymerized.  In Example (1) ethylene glycol is esterified with phthalic anhydride, the product cooled to 60 DEG C., phosphorous acid octyl ester dichloride added dropwise and the mixture heated to yield a colourless highly viscous product, soluble or organic solvents, (2) phosphorous acid butyl ester dichloride is run into a dioxane solution of ethylene glycol and the mixture refluxed.  The dioxane is removed, phthalic anhydride added and the mixture heated, (3) glycerine is reacted with phosphoric acid phenyl ester dichloride and then with phthalic anhydride, (4) phosphoric acid p-tert-butyl phenyl ester dichloride is reacted with a polyester from glycerol and phthalic anhydride, (5) phosphoric acid hexyl ester dichloride is reacted with a polyester from ethylene glycol, phthalic and maleic anhydrides.  The product may be further polymerized with benzoyl peroxide.  The products are generally transparent, flameproof and are useful for impregnating paper, textiles; as adhesives or coating agents, or for making shaped bodies.  They are soluble in solvents such as benzene, xylene, acetone, dioxane, dimethyl formamide and may be mixed with various additives, e.g. chlorinated hydrocarbons, fillers, or organic or inorganic, e.g. glass, fibres.  Specifications 883,754, 891,704 and 893,674 are referred to.
Patent GB-581649-A (GB)
Title: Improvements in or relating to heat detecting or fire extinguishing system
IPC: H01H37/76
Filed: 1944-09-28
Abstract: 581,649. Thermal switches; actuation of switches. GLENDINNING, W. G., and McLENNAN, A. M. Sept. 28, 1944, No. 18643. [Class 38 (v)] A heat-detecting or fire-extinguishing system, of the kind in which the operation of an alarm &c. is controlled by a pressure-responsive element connected to a hollow detector element of which at least a part is fusible at a desired limiting temperature and whose internal pressure is normally different from atmospheric pressure, comprises two detector elements 3 and two control means 9, the response of which is only effective when there is a change in presure in both detector elements. The elements 3 are either made entirely of a fusible material, such as copper or a copper alloy, or they have perforations sealed with solder 5. Normally, each bellows 9 is biassed upwards by the pressure therein, thereby keeping the control circuit open at two points 18. When the solder 5 melts, the bellows collapse, due to the fall in pressure and the bias of springs 12, thereby bridging four series contacts 30 with contacts 18. The Provisional Specification also gives examples of the alloys forming the solder 5 and the fusible tubes 3, the melting points being between 180‹C. and 640‹C.